Home / 2,722.70-4,078.65-1,623.80

Finding the Fourth Proportional to 2,722.70, 4,078.65 and 1,623.80

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Solution

The fourth proportional to 2,722.70, 4,078.65 and 1,623.80 is: 2,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.70 : 4,078.65 = 1,623.80 : x
  2. Step 2: Convert to fraction form
    2,722.70/4,078.65 = 1,623.80/x
  3. Step 3: Cross multiply
    2,722.70x = 4,078.65 × 1,623.80
  4. Step 4: Simplify right side
    2,722.70x = 6,622,911.87
  5. Step 5: Solve for x
    x = 6,622,911.87/2,722.70
  6. Step 6: Final answer
    x = 2,432.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.